January 17, 2018 – ams, a supplier of sensor solutions, launched the AS7265X, an 18-channel multispectral sensor solution.
The 18-channel 3-chip calibrated visible through near-infrared chipset is designed for emerging spectral sensing applications such as horticulture, fluid quality/spectral component analysis and complex spectral identification, including anti-counterfeiting and authentication. This announcement brings the 2017 offerings from the AS726x multispectral sensing products to 4 solution sets, including 6-channel visible, near-IR, true color and 18-channel family members.
The AS7265x chipset consists of 3 6-channel sensor devices, each 4.5 x 4.4 x 2.5mm, in land-grid array packages with integrated apertures. The master-slave-slave architecture appears as a single logical device.
The 18-channels span wavelengths from 410 to 940nm with 20nm filter widths.
The AS72651/652/653 chipset is calibrated at the factory, delivering a normalized 35 counts/µW/cm2 across the entire sensed spectrum. Combined with the filter stability over time and temperature, this allows a “calibrated-for-life” design that lowers both components and manufacturing costs, and enables these new application spaces.
The chipset is implemented in a master/slave/slave arrangement, each with six spectral sensing channels. Integrated intelligence enables the calibrated digital output and manages the interface to the host microprocessor via the selectable choice of I 2 C or UART interfaces. The combined set’s 18 channels are 20nm full-width-half-max, with wavelength centerpoints at 410, 435, 460, 485, 510, 535, 560, 585, 610, 645, 680, 705, 730, 760, 810, 860, 900 and 940nm.
Operating as a 3-chip set, the devices include electronic shutter capabilities with 3 independent 100mA LED drive controls, which means that device designers can accurately control multiple light sources to enhance the spectral sensing functions without added componentry.
